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We did the gold penny

We did the gold penny lab, where we bathed a copper penny in a hot zinc-NaOH mixture to turn it a silver color, then we heated
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2. asked by Emily
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If Gold sells for $1200.00 an ounce, how many atoms of gold can you buy for a penny? Please, Show work.
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2. asked by Kristen
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Bob has a brother, Jim, who has a daughter named Bertha. Bertha's daughter, Jennifer, has a sister named Penny. Which of the
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2. asked by Ingrid
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A penny is dropped from a 300ft high bridge.a. How long does it take for the penny to reach the ground below? b. What is the
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2. asked by Brent
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A man tosses a penny up into the air above a 100 ft well with a velocity of 5 ft/sec. The penny leaves his hand at a height of 4
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2. asked by cole
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if you place a dime penny and quarter on a spinning turntable which coin has a greater speed than the penny than the penny
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2. asked by Lex
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A penny falls from a windowsill 25.0 m above the sidewalk. How fast is the penny moving when it strikes the ground? (Remember
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2. asked by Anonymous
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Penny is studying to become a nurse. While she is taking her nursing courses, her guidance counselor also advises that she takes
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2. asked by Lucinda
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Pepe throws a penny off the empire state building. The penny's height above ground can be modelled using the equation
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2. asked by Ashley
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a penny is placed .1 m from the center of a turntable. if the coefficient of static friction between the penny and the turntable
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2. asked by rory
3. 1,536 views